Answers

Add 15/30 and 63/42

1^st number: 15/30, 2^nd number: 1 21/42

15/30 + 63/42 is 2/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 42 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 30 × 7 = 210,
   15/30 = 15 × 7/30 × 7 = 105/210
3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
   63/42 = 63 × 5/42 × 5 = 315/210
4. Add the two like fractions:
   105/210 + 315/210 = 105 + 315/210 = 420/210
5. 420/210 simplified gives 2/1
6. So, 15/30 + 63/42 = 2/1

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